Model: Calatrava Reference: 3919 Date: Circa 1995 Movement: 18-jewel Cal.215 manual wind, adjusted to heat, cold, isochronism and 5 positions, Gyromax balance, Stamped with Seal of Geneva Dial: White, black Roman numerals, subsidiary seconds at 6, black leaf hands Case: Brushed and polished round, movement accessed through the glass, hobnail engraved bezel Strap/Bracelet: Black Patek Philippe alligator leather Buckle/Clasp: Signed 18K gold buckle Signed: Case, dial & movement Size: 30mm Accompaniments: Patek Philippe case, outer card 注脚 The Patek Philippe Calatrava Ref.3919 was released in 1985 and remained in production until 2006. The iconic design's most notable feature is it's hobnail bezel.